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Dear Customer,
Thank you for choosing and buying one of our boilers. Please read these instructions carefully in order to install, operate and service the boiler properly.
Page 1: ...IST 03 C 397 02 INSTALLATION USE AND MAINTENANCE NIAS CONDENSING GB...
Page 2: ...2 Dear Customer Thank you for choosing and buying one of our boilers Please read these instructions carefully in order to install operate and service the boiler properly...
Page 3: ...t of failure or faulty operation switch off the boiler Do not attempt to make any repairs and contact a qualified technician Manufacturer approved parts must be used for all repairs to the boiler Fail...
Page 4: ...ll show the flow water temperature 5 Decide whether you wish to activate the Aqua Premium system and proceed as follows to regulate the hot water temperature Turn regulator 3 fig 1 anticlockwise as fa...
Page 5: ...6 Available head 19 3 Instructions for the fitter 20 3 1 Installation standards 20 3 2 Installation 20 3 2 1 Packaging 20 3 2 2 Choosing where to install the boiler 20 3 2 3 Positioning the boiler 20...
Page 6: ...lation trimmer 31 fig 22 Heating curves for operation with an external probe 31 fig 23 Wiring diagram 33 fig 24 Adapting to other gases 34 fig 25 Gas valve regulation 35 LIST OF TABLES Table 1 BOILER...
Page 7: ...c hot water only With the selector on WINTER the boiler is ready to heat and produce hot water With the selector on ANTI FREEZE only the anti freeze function is enabled 3 DHW temperature regulator Thi...
Page 8: ...shutdown device activates due to a malfunction To restart the boiler turn the boiler selector 2 fig 1 to the RESET position for a few seconds and then back to the desired position g Flame indicator Th...
Page 9: ...MER or WINTER CH function active The water flow temperature is displayed Table 1 BOILER STATUS LCD visualisation correspondence normal operation Malfunction Boiler not powered on Boiler shutdown due t...
Page 10: ...range 4 minutes reduced range 2 minutes Should water temperature in the system fall below the default value waiting time procedure is aborted and boiler re ignited see par 3 2 11 1 4 3 DHW function Th...
Page 11: ...r minute 30 When there is a demand for hot water the tap symbol fixed and the instantaneous flow water temperature are displayed The burner symbol shows while the burner is in operation 1 4 4 Anti fre...
Page 12: ...and decreasing it when it rises which improves comfort and saves fuel this is referred to as sliding temperature operation The heating water temperature varies according to a program in the boiler s m...
Page 13: ...r flue gas system malfunction If the air flue gas system malfunctions the boiler shuts down The burner shutdown symbol symbol is displayed and code E20 differential pressure switch cut in flashes Cont...
Page 14: ...If the optional external temperature probe malfunctions the boiler shutdown symbol is displayed and code E23 flashes The boiler will continue to operate but the sliding temperature function is deacti...
Page 15: ...omatic by pass 10 liter expansion vessel System loading and draining taps Motorized switching valve DHW priority flow switch Operating features CH electronic flame modulation with timer controlled ris...
Page 16: ...let M CH flow C DHW outlet F Cold water inlet R CH return RC Filling tap S Condensate drain RSR CH drain tap RSS DHW storage drain tap SV3 3 bar safety valve CH SV6 6 bar safety valve DHW View from ab...
Page 17: ...no riscaldamento Flussostato Valvola a tre vie Valvola gas sanitario Sonda di temperatura accumulo Ventilatore modulante Scambiatore di calore Bruciatore fig 7 Heat exchanger Burner Modulating fan Loc...
Page 18: ...KB 28 Equipment category II2H3P II2H3P Minimum CH system pressure bar 0 5 0 5 Maximum CH system pressure bar 3 3 Minimum DHW system pressure bar 0 5 0 5 Maximum DHW system pressure bar 8 8 DHW specif...
Page 19: ...on class 5 Table 6 KB 28 Pmax Pmin Reduced load 30 Casing heat loss with burner on 0 9 2 3 Casing heat loss with burner off 0 3 Chimney heat loss with burner on 2 5 2 2 Flue gas system mass flow rate...
Page 20: ...to install the boiler Refer to the instructions in subsection3 2 6 Air intake flue gas discharge system Make sure the wall is strong enough to support the boiler avoid lightweight partition walls Do n...
Page 21: ...1 Wall mounting template fig 9 1 2 C F R M G L Fitting Copper pipe L M CH flow 3 4 18 mm 349 mm C DHW 1 2 14 mm 389 mm G Gas 1 2 18 mm 349 mm F Cold water 1 2 14 mm 389 mm R CH return 3 4 18 mm 349 mm...
Page 22: ...e boiler proceed as follows affix the template fig 9 to the wall drill two 12 mm holes in the wall to accommodate the boiler support bracket wall plugs arrange air intake flue gas system path in the w...
Page 23: ...ant systems for condensing boiler are to be used Flue gas discharge pipes are to be installed tilted toward the boiler so that condensate runs in the direction of the combustion chamber which is desig...
Page 24: ...fan mounted before the combustion chamber heat exchanger Type C33 Boiler intended for connection to vertical outlet and intake ducts connected to the outside by means of coaxial or split ducts The di...
Page 25: ...tional 1 meter straight pipe maximum permissible length is to be reduced by 1 meter For each additional 90 elbow maximum permissible length is to be reduced by 1 meter For each additional 45 elbow max...
Page 26: ...ngth by 1 meter Sealing cap Gasket Gasket 3 2 7 Testing combustion efficiency 3 2 7 1 Chimney sweep function The boiler is equipped with chimney sweep function to be used when testing combustion effic...
Page 27: ...ducts fig 19 Remove cap A from the pre arranged openings on the tower before starting combustion checking procedure fig 18 In order to verify combustion performance the following measurements must be...
Page 28: ...y the flow from the boiler safety valve to a sewer system If this precaution is not taken the boiler room may flood if the safety valve activates The manufacturer declines all liability for damage res...
Page 29: ...o choose the operation range as per the following instruction standard range turn trimmer fully clockwise reduced range turn trimmer fully counter clockwise When the external probe is installed trimme...
Page 30: ...ure operation The boiler can be connected to an optional external temperature probe for sliding temperature operation Only original external temperature probes supplied by the manufacturer must be use...
Page 31: ...e Control when installed Relation between TSP5 value and thermoregulation curves coefficients Relation between TSP5 value and thermoregulation curve coefficients coefficient read value 84 67 In additi...
Page 32: ...er pressure gauge shows the water pressure in the system WARNING If the boiler is not used for a long time the pump may not work BEFORE STARTING UP THE BOILER PERFORM THE FOLLOWING PROCEDURE TO MAKE S...
Page 33: ...nnectors E RIV detection electrode E ACC ignition electrode PR recirculation pump PS DHW recirculation pump V fan EV two way motorized cutoff storage tank valve MVD three way valve motor DK low water...
Page 34: ...the outlet connection to the gas valve A in fig 24 see par 3 6 3 3 6 3 Burner adjustment Maximum heat output adjustment set max heat output adjuster fig 17 to maximum turn it fully clockwise the LCD w...
Page 35: ...to the boiler corresponds to the setting if necessary the boiler must be converted to the gas available see section 3 6 Adapting to other gases the gas cock is open there are no gas leaks the master s...
Page 36: ...y thermostat on the flue gas hood Operation of the hall sensor General integrity of the boiler safety devices Integrity state of preservation and seal of the flue gas discharge pipes Water leaks and o...
Page 37: ...r suction grilles Flue gas thermostat faulty Replace it The boiler has shut down The symbol is displayed and code E02 flashes Turn selector 2 to RESET to resume boiler operation Boiler safety thermost...
Page 38: ...he boiler does not work properly The symbol is displayed and code E17 flashes Operation is resumed automatically when the cause of shutdown has been removed Combustion fan not working Fan disconnected...
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Page 40: ...878 31 Fax 0365 878 576 e mail fondital fondital it www fondital it The manufacturer reserves the right to modify the products as it deems necessary and useful without affecting their basic features...
